Change of states
- 1. Changes of StateChanges of State Support MaterialsSupport Materials
- 3. PropertiesProperties PhysicalPhysical: observed without: observed without without changing the compositionwithout changing the composition of the substance.of the substance. ChemicalChemical: the ability of a: the ability of a substance to undergo a specificsubstance to undergo a specific chemical changechemical change
- 4. Properties of MatterProperties of Matter How It Looks (Shiny ,Dull, Color, etc.)How It Looks (Shiny ,Dull, Color, etc.) How It Feels (Hard, Soft, Rough , Smooth,How It Feels (Hard, Soft, Rough , Smooth, etc.)etc.) How It Smells (Sweet, Sharp, Terrible, NoHow It Smells (Sweet, Sharp, Terrible, No Smell, etc.)Smell, etc.) How It Sounds (Loud, Soft, Echo, NoHow It Sounds (Loud, Soft, Echo, No Sound, etc.)Sound, etc.) What It Does (Bounce, Stretch, Tear,What It Does (Bounce, Stretch, Tear, Break, Magnetism etc.)Break, Magnetism etc.)
- 5. Physical changes in matterPhysical changes in matter A Physical change is a change in how matter looks,A Physical change is a change in how matter looks, but not the kind of matter is it is.but not the kind of matter is it is. TearTear CutCut FoldedFolded WrittenWritten LiquidLiquid SolidSolid GasGas MixtureMixture SolutionSolution • Color • Odor • Hardness • Density • melting point • boiling point
- 6. Chemical changes in matterChemical changes in matter New Matter is formed. Burning Rusting Cooking
- 8. Is this a physical change or a chemical change?Is this a physical change or a chemical change? Can you find more than one physical or chemical change in the pictures?Can you find more than one physical or chemical change in the pictures?
- 9. PHASE CHANGE NAME PROCESS MATERIAL GAIN OR RELEASE ENERGY? EXAMPLE Melting Changing of a solid to a liquid Gained Left out ice cream Solidification (Freezing) Changing of a liquid to a solid Released Making ice cubes Evaporation (Vaporization) Changing of a liquid to a gas or vapor Gained Vaporizer used when sick Condensation Changing of a gas or vapor to liquid Released Foggy mirror after shower Sublimation Changing of a gas directly to a solid or from a solid directly to a gas Gain if going to gas, released if going to solid Dry ice Types of Change of State
- 10. Stored Heat and Changes ofStored Heat and Changes of StateState A material’s temperature rises as heatA material’s temperature rises as heat is added to it unless the material is inis added to it unless the material is in the process of changing state, thenthe process of changing state, then the temperature will remain the samethe temperature will remain the same as it is heatedas it is heated A cheesy 80s video to help explain the conceptA cheesy 80s video to help explain the concept EUREKA!!!EUREKA!!!
- 12. Change of PhaseChange of Phase MeltingMelting CondensationCondensation FreezingFreezing EvaporationEvaporation SublimationSublimation Boiling:Boiling: Evaporation occurring beneath the liquid’sEvaporation occurring beneath the liquid’s surface.surface. solid liquid gas liquid liquid solid liquid gas solid gas